Port `Settings` and `OS` to TypeScript

js/modules/os.js

@@ -1,7 +0,0 @@
-/* eslint-env node */
-
-exports.isMacOS = () => process.platform === 'darwin';
-
-exports.isLinux = () => process.platform === 'linux';
-
-exports.isWindows = () => process.platform === 'win32';

js/modules/types/settings.js

@@ -1,3 +0,0 @@
-const OS = require('../os');
-
-exports.isAudioNotificationSupported = () => !OS.isLinux();

preload.js

@@ -200,7 +200,7 @@ window.Signal.Migrations.Migrations1DatabaseWithoutAttachmentData = require('./j
 
 window.Signal.Migrations.upgradeMessageSchema = upgradeMessageSchema;
 window.Signal.Notifications = require('./ts/notifications');
-window.Signal.OS = require('./js/modules/os');
+window.Signal.OS = require('./ts/OS');
 window.Signal.Settings = require('./js/modules/settings');
 window.Signal.Startup = require('./js/modules/startup');
 
@@ -211,7 +211,7 @@ window.Signal.Types.Errors = require('./js/modules/types/errors');
 
 window.Signal.Types.Message = Message;
 window.Signal.Types.MIME = require('./ts/types/MIME');
-window.Signal.Types.Settings = require('./js/modules/types/settings');
+window.Signal.Types.Settings = require('./ts/types/Settings');
 window.Signal.Util = require('./ts/util');
 
 window.Signal.Views = {};

ts/OS.ts

@@ -0,0 +1,15 @@
+import is from '@sindresorhus/is';
+import os from 'os';
+import semver from 'semver';
+
+export const isMacOS = () => process.platform === 'darwin';
+export const isLinux = () => process.platform === 'linux';
+export const isWindows = (minVersion?: string) => {
+  const isPlatformValid = process.platform === 'win32';
+  const osRelease = os.release();
+  const isVersionValid = is.undefined(minVersion)
+    ? true
+    : semver.gte(osRelease, minVersion);
+
+  return isPlatformValid && isVersionValid;
+};

ts/test/types/Settings_test.ts

@@ -1,7 +1,8 @@
-const sinon = require('sinon');
+import os from 'os';
-const { assert } = require('chai');
+import sinon from 'sinon';
+import { assert } from 'chai';
 
-const Settings = require('../../../js/modules/types/settings');
+import * as Settings from '../../../ts/types/Settings';
 
 describe('Settings', () => {
   const sandbox = sinon.createSandbox();
@@ -22,8 +23,10 @@ describe('Settings', () => {
     });
 
     context('on Windows', () => {
+      context('version 8+', () => {
         beforeEach(() => {
           sandbox.stub(process, 'platform').value('win32');
+          sandbox.stub(os, 'release').returns('8.0.0');
         });
 
         afterEach(() => {
@@ -34,6 +37,7 @@ describe('Settings', () => {
           assert.isTrue(Settings.isAudioNotificationSupported());
         });
       });
+    });
 
     context('on Linux', () => {
       beforeEach(() => {

ts/types/Settings.ts

@@ -0,0 +1,4 @@
+import * as OS from '../OS';
+
+export const isAudioNotificationSupported = () =>
+  OS.isWindows() || OS.isMacOS();